Aluminum heel for ladies&#39; shoes



D. BOLTZMAN.

ALUMINUM HEEL FOR LADIES SHOES.

APPLICATION FILED meme, 1920.

1,363,388. Patented Dec. 28,1920;

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PATENT OFFICE.

DAVID BOLTZMIAN, OF ST. LOUIS, MISSOURI.

ALUMINUM HEEL FOR LADIES SHOES.

Specification of Letters Patent.

Patented Dec. 28, 1920.

Application filed August 16, 1920. Serial No. 403,666.

To all whom it may concern:

Be it known that 1, DAVID BOLTZMAN, a citizen of the United States, residing in the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Aluminum Heels for Ladies Shoes,

of which the following is a specification.

My invention relates to aluminum heels for ladies shoes, and, more particularly to means for retaining a leather plug in a socket in the tread portion of the heel.

A further object of the invention is the provision of a horse-shoe shaped plate for engagement in a channel in the wall of the socket and of means integral with the wall of the socket for frictional engagement with the plate to hold the same in fixed relation with the heel.

A still further object of the invention is to provide the wall of the socket in the tread portion of the heel with a channel to form a seat to receive the plug retaining plate and to provide the lower face of the socket wall with a plurality of opposed projecting fingers, or bosses capable of being forced apart and clenched over the edge of the plate to retain the plate in position on the heel.

A. still further object of the invention is to provide the plug retaining plate with a plurality of perlpheral cutaway portions to form pockets to receive the locking bosses.

Referring to the accompanying drawings forming a part of this specification wherein like characters of reference denote similar parts throughout the several views:

Figure 1, is a bottom plan view of the tread portion of an aluminum heel formed in accordance with my invention.

Fig. 2, is a bottom plan view of the tread portion of an aluminum heel with the leather plug retaining plate fixed thereto in accordance with my invention.

Fig. 3,' is a view taken on line 33 of Fig. 2 showing the plug retaining plate in position prior to being fixed thereto.

Fig. 4, is a sectional view similar to F1". 3, showing the plug retaining plate secure? held in position by means of the locking bosses, or fingers.

Fig. 5, is a plan view of the plug retaining plate.

Fig. 6, is a modified form of bosses for locking the plug retaining plate in fixed relation with the heel.

Fig. 7, is a bottom plan view showing the plug retaining plate held in fixed relation to the heel in the modified form.

Fig. 8, is a sectional view of the heel showing the modified means holding the plug retainlng plate in fixed relation with the heel.

Referring to the drawings, the reference character 1 designates the tread portion of an aluminum heel having a socket 2 formed in the lower end thereof bounded by the wall The socket 2 is open at its lower end and closed at its upper end by the roof 4. The curved portion of the wall 3 is provided at intervals, preferably at the front corners of the heel and at the rear thereof, with opposed projecting bosses, or fingers 5 which extend to the bottom 'face 6 of the wall 4. The bosses, or fingers 5 are integral with the wall 4, as shown. The wall l is provided on opposite sides of each pair of fingers, or lugs 5 with a channel to form a depressed seat 7 in the bottom face of the wall 4.

8 indicates a suitable plug retaining plate in the form of a horseshoe. The plate 8 is provided at intervals with peripheral cutaway portions 9 to form pockets to receive the bosses, or lugs 5 when the plate is positioned upon the depressed seat 7, as shown in Figs. 1 and 3. After a suitable leather plug 10 is positioned in the socket 2, the plate 8 is then positioned in the channel 7 and then the bosses, or lugs 5 are forced outwardly, by any convenient tool, so as to lap or clench over the outer face of the plate 8 adjacent the cutaway portions 9 thereof, as shown in Figs. 2 and i.

The plug retaining plate 8 is wide enough so that the inner edge thereof overlaps the plug 10 to hold the same in the socket after the bosses, or lugs 5 have been spread to cl ench over the plate, as is manifest.

The curved portion of the plate 8 terminates at each end in two opposed inwardly extending arms 11, the inner ends of which are spaced far enough apart to permit nails to be driven therebetween, if desired, or necessary. The center of the plate 8, it is observed, is open so that nails 12 may be driven through a top lift 13 and enter the plug 10 without coming into contact with the plate 8.

This form of plug retaining plate 8 and means for retaining the plate in position on the heel, ofiers no obstruction in the center of the tread portion of the heel for nails to engage, thus enabling either leather or rubber tread lifts to be applied to the heel, as desired.

Referring to the modified form of means for retaining the plate 8 in position, as shown in Figs. 6 to 8, inclusive, it will be observed that instead of providing opposed fingers, or lugs 5, I employ three single fingers, or lugs 14, which instead of being spread or forced outwardly to clench over and engage the plug retaining plate 8, are forced inwardly and, over the peripheral edge of the plate adjacent the cutaway portions thereof, asshown in Figs. 7 and 8. The cutaway portions 15 of the modified form of plug retaining plate 8, may .be narrower and more shallow than the cutaway portions shown in the preferred form of plug retaining plate, and, further the cutaway portions of the modified form of plate may be arranged exactly at the forward cor ners thereof instead ofa short distance therefrom, as shown in thepreferred form' of plate.

It is evident from the foregoing description, and the illustrations, that I provide cheap and practical means for fixing the plug retaining plate to the wall 4 of the socket 2 and obviate the necessity of screw, or like fastening means for retaining either the plug, or plate in position.

The manyadvantages of the herein de scribed invention will readily suggest themselves to those skilled in the art to which it appertains.

I do not desire to be understood as limiting myself to the exact details of construction and arrangement as herein described and illustrated, as it is manifest that variations and modifications may be made with- 40 V out departing from the spirit and scope of my invention and the terms of the following claims, hence I wish it to be understood that I reserve the right to make any such changes, or modifications as mayfairly fall within the scope of the appended claims when fairly construed.

What I claim is:

1. In combination with an aluminum heel for ladies shoes having a socket leading from the tread portion thereof and bounded by a wall to receive a leather plug, of a plug retaining plate seated in the lower face of the wall bounding the socket and means integral withthe wall of the socket capable of being clenched over the edge of the plug retainlng plate and engage the outer face thereof for retaining the plate in fixed relation with the heel and retain the plug in the socket.

2. In combination with a hollow aluminum heel provided with a socket leading from the tread end thereof and a leather plug in said socket, of a plug retaining plate seated upon the wall of the socket and engaging the outer face of the leather plug, and means formed integral with the wall of the socket capable of being forced into frictional contact with the outer face of the plug retaining plate to securely hold the ,3 plate in fixed relation with the heel and retain the, plug in thesocket. I 3. In combination with a hollow 3411111117 *cnum heel provided with a socket leading from thetread end thereof and bounded by wall having a channel to form a seat in the lower face thereof, of a leather plug for said socket, a plug retaining member engageable in said channel and engaging the outer face of said plug adjacent its peripheral edge, and a plurality of fastening members integral with the wall of the socket capable of being forced into engagement with the outer face of the plug retaining member for securely holding the plate in fixed relation with the heel and the plug in the socket.

a. In means for retaining a leather plug in the socket leading from the tread end of an aluminum heel, of a horse-shoe shaped plate seated upon the wall bounding the socket and engaging, the outer face of the leather plug adjacent the edge thereof, andclenchable means cast integral with the wall of the socket for retaining the plate in fixed relation to the heel and retain the ping in the socket.

5. A. tread portion for aluminum heel hav ing a socket leading from the tread end thereof and bounded to a wall having an angular channel formed in the lower face thereof, a plurality of protuberant mem bers cast integral with the wall of the socket and in the path of said channel, and a plug retaining member seated in the channel and adapted to overlap the outer edge of the plug for holding the plug in the socket, said plug retaining plate being held in fixed relation with the wall of the socket by clenching the protuberant members over the outer edge of plate. a

In testimony whereof I have hereunto signed my name to the specification.

' DAVID BOLTZMAN. 

